Our standard SN nuts have proven themselves for the past twenty years.Available in sizes from 3/16” to 1-1/2” with or without mounting flanges. (flanges sold separately)SpecificationsSpecificationsValueDrag TorqueFree WheelingEfficiency %81MaterialAcetalPreloadNon-PreloadedTemperature Max180 °FThread DirectionRHDimensionsDimensionValue[A] Diameter0.625 in[B]0.5 in[C]0.187 in[TH]9/16-18Diameter, Nominal Screw0.25 inNut Dia0.625 inNut Length0.5 intravel per shaft rev0.5 inPerformancePerformanceValueDesign Load45 lbfLoad, Static, Maximum225 lbf